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Strong-Drive® SD CONNECTOR Screw 

The Strong-Drive SD Connector screw is specifically designed to replace nails in certain Simpson Strong-Tie connectors and is the only screw approved for that application. The load-rated SD screw has been tested and approved for use in many popular Simpson Strong-Tie products. In certain applications screws are easier and more convenient to install than nails, and the single-fastener load values achieved by the SD screw exceed those of typical 10d common or 16d common nails. In addition, the galvanized coating makes the SD screw ideal for interior and most exterior conditions.

Key Features

  • Specifically designed to replace nails in certain Simpson Strong-Tie connectors and is the only screw approved for that application. The #9 and #10 SD screws replace 10d and 16d nails, respectively.
  • Tested and approved for use in many of our most popular connectors for both interior and exterior applications.
  • Ideal for use in connector applications where more control is desired or using a hammer is inconvenient.
  • 1/4" hex head with 0.370"-dia. integrated washer is stamped with the Simpson Strong-Tie "≠" sign and the fastener size for easy identification after installation.
  • Shank is specifically designed to match the fastener holes in Simpson Strong-Tie connectors.
  • Optimized heat treating for ductility and strength.
  • The single-fastener load capacity of the SD9 exceeds the capacity of a 10d common nail, while the single-fastener load capacity of the SD10 exceeds that of the 16d common nail.
  • Hex driver included.

Mechanically galvanized coating meets ASTM B695 Class 55, is recommended for use with certain preservative-treated woods and recognized as an alternate to hot-dip galvanized in ESR-3046; it is compliant with the 2012 International Residential Code®.

Applications

  • Simpson Strong‑Tie connectors

Related Literature

Fastening Systems Catalog
C-F-2023
A catalog including new product information as well as any applicable specification and installation instructions for Simpson Strong-Tie® fasteners and Quik Drive® systems.
Catalog
Fastening Systems Technical Guide
C-F-2023TECHSUP
A technical document featuring engineering information for structural fasteners featured in the C-F-2023 Fastening Systems Catalog.
Catalog
Guía técnica de los sistemas de sujeción
C-F-2023TECHSP
Un documento técnico información de ingeniería para los sujetadores estructurales que se incluyen en el C-F-2019SP Catálogo de sistemas de sujeción.
Catalog
Sistemas de sujeción
C-F-2023SP
Catálogo que incluye información sobre productos nuevos y las instrucciones de instalación y especificaciones correspondientes para los sujetadores Simpson Strong-Tie® y los sistemas Quik Drive®.
Catalog
Fastening Systems Technical Supplement for Canada
C-F-2017CANADD
A technical information addendum for Simpson Strong-Tie Fasteners in Canada.
Catalog
Deck Connection and Fastening Guide
F-DECKCODE22
A guide to deck building and for retrofitting safer, longer-lasting outdoor decks, with 2018 and 2021 IRC/IBC code-compliant solutions for using the latest anchors, connectors and fasteners.
Product Guide
High Wind Guide
F-C-HWG23
A comprehensive guide to help designers select the most appropriate connections for high-wind regions.
Product Guide
Installer's Pocket Guide
S-C-INSTALL22
A bilingual pocket installation guide for connectors.
Product Guide
Strong-Tie DIY - Projects for a strong and beautiful home
S-HOMEPRJCTS18
A booklet featuring practical and attractive DIY projects for home and yard using Simpson Strong-Tie® connectors and fasteners, including Outdoor Accents®.
Flier
Strong-Tie DIY - Proyectos para una casa resistente y hermosa
S-HOMPRJCTS18SP
Un catálogo con proyectos prácticos y atractivos DIY para el hogar y el patio que utilizan conectores y sujetadores Simpson Strong-Tie® y accesorios Outdoor Accents®.
Flier
New Post Base Sized for 2x Lumber
F-C-ABA242Z23
A flier providing product illustrations and load table information for the new ABA24-2Z post base.
Flier
Strong-Drive® SD Connector SS Screw — Type 316 Stainless Steel
F-F-SD-SS21
A flier providing product and installation information for the Strong-Drive SD Connector screw, highlighting the new SD Connector stainless-steel (SS) fasteners.
Flier
Seismic Retrofit Guide for Raised Foundations
F-SEISRETRGD19
A seismic retrofit guide for homes with raised foundations. This guide helps homeowners understand how to inspect, evaluate and perform basic retrofit construction using Simpson Strong-Tie products.
Flier
Allowable Loads for Joist Hangers with Gaps
T-C-HANGERGAP22
A technical bulletin explaining how allowable loads for joist and truss hangers are affected by gaps between the end of the carried member and the face of the carrying member.
Technical Bulletin
Code-Compliant Guardrail Post Connections
T-C-GRDRLPST22
A technical bulletin featuring details and illustrations for code-compliant 36" and 42" guardrail post connections.
Technical Bulletin
Connection Solutions to Meet the DCA6 Prescriptive Residential Wood Deck Construction Guide
T-C-DCA6DECK21
A technical bulletin providing Simpson Strong-Tie connector, fastener and anchor solutions to meet the DCA6 provisions of the 2015 IRC for single-level, residential wood decks.
Technical Bulletin
Installation Options for Deck Lateral Load Connections
T-C-DECKLAT21
A technical bulletin featuring installation options for deck lateral load connections using the DTT1Z and DTT2Z.
Technical Bulletin
Simpson Strong-Tie® LSSJ installed with Strong-Drive® SD Connector Screws
L-C-LSSJSCREW22
This letter provides allowable loads for the LSSJ installed with Strong-Drive® SD Connector screws as tested in our IAS-accredited lab.
Engineering Letter
Simpson Strong-Tie® LSSR installed with Strong-Drive® SD Connector Screws
L-C-LSSRSCREW21
This letter provides allowable loads for the LSSR installed with Strong-Drive® SD Connector screws as tested in our IAS-accredited lab.
Engineering Letter

Product Information Table

Fastener Production Information and Stuff & Things
Model No. Coating/Material Screw Size Length (in.) Head Diameter (in.) Shank Diameter (in.) Drive Type Head Type Thread Length (in.) Point Type Packaging Qty.
SD10112MB Mechanically Galvanized, Class 55 #10 1 1/2 0.370 0.160 1/4 in. Hex Hex Head 1 1/8 Sharp Point 3000
SD10112R100 Mechanically Galvanized, Class 55 #10 1 1/2 0.370 0.160 1/4 in. Hex Hex Head 1 1/8 Sharp Point 100
SD10112R500 Mechanically Galvanized, Class 55 #10 1 1/2 0.370 0.160 1/4 in. Hex Hex Head 1 1/8 Sharp Point 500
SD10212MB Mechanically Galvanized, Class 55 #10 2 1/2 0.370 0.160 1/4 in. Hex Hex Head 1 1/8 Sharp Point 2000
SD10212R100-R Mechanically Galvanized, Class 55 #10 2 1/2 0.370 0.160 1/4 in. Hex Hex Head 1 1/8 Sharp Point 100
SD10212R500 Mechanically Galvanized, Class 55 #10 2 1/2 0.370 0.160 1/4 in. Hex Hex Head 1 1/8 Sharp Point 500
SD9112MB Mechanically Galvanized, Class 55 #9 1 1/2 0.370 0.130 1/4 in. Hex Hex Head 1 1/8 Sharp Point 3000
SD9112R100 Mechanically Galvanized, Class 55 #9 1 1/2 0.370 0.130 1/4 in. Hex Hex Head 1 1/8 Sharp Point 100
SD9112R500 Mechanically Galvanized, Class 55 #9 1 1/2 0.370 0.130 1/4 in. Hex Hex Head 1 1/8 Sharp Point 500
SD9212MB Mechanically Galvanized, Class 55 #9 2 1/2 0.370 0.130 1/4 in. Hex Hex Head 1 1/8 Sharp Point 2000
SD9212R100-R Mechanically Galvanized, Class 55 #9 2 1/2 0.370 0.130 1/4 in. Hex Hex Head 1 1/8 Sharp Point 100
SD9212R500 Mechanically Galvanized, Class 55 #9 2 1/2 0.370 0.130 1/4 in. Hex Hex Head 1 1/8 Sharp Point 500

Product Information Table

Model No. Length (in.) Screw Size Drive Type Head Type Point Type Coating/Material Packaging Quantity UPC
SD10112MB 1 1/2 #10 1/4 in. Hex Hex Head Sharp Point Mechanically Galvanized, Class 55 3000 707392734802
SD10112R100 1 1/2 #10 1/4 in. Hex Hex Head Sharp Point Mechanically Galvanized, Class 55 100 707392461203
SD10112R500 1 1/2 #10 1/4 in. Hex Hex Head Sharp Point Mechanically Galvanized, Class 55 500 707392773405
SD10212MB 2 1/2 #10 1/4 in. Hex Hex Head Sharp Point Mechanically Galvanized, Class 55 2000 707392115106
SD10212R100 2 1/2 #10 1/4 in. Hex Hex Head Sharp Point Mechanically Galvanized, Class 55 100 707392312901
SD10212R100-R 2 1/2 #10 1/4 in. Hex Hex Head Sharp Point Mechanically Galvanized, Class 55 100 707392450290
SD10212R500 2 1/2 #10 1/4 in. Hex Hex Head Sharp Point Mechanically Galvanized, Class 55 500 707392421702
SD9112MB 1 1/2 #9 1/4 in. Hex Hex Head Sharp Point Mechanically Galvanized, Class 55 3000 707392513704
SD9112R100 1 1/2 #9 1/4 in. Hex Hex Head Sharp Point Mechanically Galvanized, Class 55 100 707392977001
SD9112R500 1 1/2 #9 1/4 in. Hex Hex Head Sharp Point Mechanically Galvanized, Class 55 500 707392126607
SD9212MB 2 1/2 #9 1/4 in. Hex Hex Head Sharp Point Mechanically Galvanized, Class 55 2000 707392125808
SD9212R100 2 1/2 #9 1/4 in. Hex Hex Head Sharp Point Mechanically Galvanized, Class 55 100 707392395300
SD9212R100-R 2 1/2 #9 1/4 in. Hex Hex Head Sharp Point Mechanically Galvanized, Class 55 100 707392884446
SD9212R500 2 1/2 #9 1/4 in. Hex Hex Head Sharp Point Mechanically Galvanized, Class 55 500 707392103509
  These coated fasteners possess a level of corrosion resistance that makes them suitable for use in some exterior and corrosive environments and with some preservative-treated woods. For applications in higher-exposure applications, consider type-300 series stainless-steel fasteners for superior corrosion resistance. See additional important information before selecting a fastener for a specific application.

Load Tables

Links to load tables for connectors installed with the Strong-Drive® SD Connector Screw can be found here: Connectors Approved for Use with the Strong-Drive® SD Connector screw.

SD Connector Screw — Allowable Shear Loads for Wood Connections

SD Connector Screw - Allowable Shear Loads for Wood Connections
  1. Allowable loads are shown at the wood load duration factor of CD = 1.00. Loads may be increased for load duration per the building code up to a CD = 1.60.
  2. The 15/32" and 23/32" side members must be plywood or OSB with minimum equivalent specific gravities of 0.50 for DFL and SP design values, and 0.42 for SPF and HF design values. See NDS, Table 12.3.3B for specific WSP grades and associated equivalent specific gravities.
  3. Loads are based on connections with main members of DFL/SP or SPF/HF and side members as shown and described in table note 2. Screws shall be installed normal to the surface of the wood members.
  4. For minimum fastener spacing requirements for both side and main members, see the Spacing Requirements Figure and Table below.


SD Connector Screw — Allowable Withdrawal Loads

SD Connector Screw — Allowable Withdrawal Loads
  1. The tabulated reference allowable withdrawal value, W, is in pounds per inch of the thread penetration into the side grain of the main member.
  2. Tabulated reference allowable withdrawal value, W, must be multiplied by all applicable adjustment factors from the NDS as referenced in the IBC or IRC.
  3. Embedded thread length is that portion held in the main member including the screw tip.
  4. For connections with 15/32" thick plywood or OSB side members, allowable withdrawal loads, W, must be limited by the head pull-through design value of 130 lb.


SD Connector Screw Spacing Requirements

SD9 and SD10 Screw Spacing Requirements
  1. For SD9 screws subject to axial loading only, use the following minimum dimensions: end distance = 1 7/8", edge distance = 3/4", spacing parallel to grain = 1 1/4", spacing perpendicular to grain = 3/4".
  2. For SD10 screws subject to axial loading only, use the following minimum dimensions: end distance = 2", edge distance= 7/8", spacing parallel to grain = 1 1/2", spacing perpendicular to grain = 7/8".


SD Connector Screw — Allowable Shear Loads — Steel Side Plate

  1. Loads are given for CD = 1.00 and may be increased for load duration per the building code to CD = 1.60.
  2. Steel side-plate thickness is 33 to 100 mil (20 – 12 ga.).

Code Reports & Compliance

Drawings

PDF DWG DXF RFA IFC SAT

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